only thing i can think of, without being able to look at anything: make sure the background texture is not "None" (Frame>Background>Background Style").
Nope. Default setting is "Solid". But setting it to one of the "Blizzard blah" styles didn't make a difference either.

I'm having the same problem as Zidomo. I really liked this addon, but the accidental opening of the configuration window makes it unusable for me now, because I have it placed pretty much in the center of the screen, on autohide, so it happens to me all the time. :(
Edit: Hey, I think I fixed it. :banana:
When I edit TidyThreatCo...